Useful JQuery methods and events for web designers p.1

I am almost finished reading Learning jQuery 1.3 by Karl Swedberg, Jonathan Chaffer ; I’d like to share some useful methods and code snippets that may come handy to web designers when it is time to handcoding our beautiful layouts.
Reference: jquery.com

First of all let’s add JQuery to our page:

   <script type="text/javascript" src="jquery.js"></script>

Launching code:

 $(document).ready(function(){
   // Your code here
 });

These are the methods I find more useful:

1. the .noConflict() method enables the use of multiple JS libraries (like Prototype)
2. the .addClass and .removeClass

    $(document).ready(function(){
        $('#your_id').addClass('your_class');
   
    });
   

3. the negation pseudo-class:

   $('#your_id li:not(.your_class)').addClass('your_class');

4. the :eq custom selector – selects the third item from a matched set of div selectors with a ‘my_class’ class

    $('div.my_class:eq(2)')

5. the :nth-child custom selector – matches elements which are the indexth child of their parent element

   $('tr:nth-child(index)').addClass('your_class');

6. the :odd and :even custom selectors:

    $('tr:odd').addClass('your_class');

7. the :contains() selector:

    $('td:contains(name)').addClass('your_class');

8. form selectors: :text, :checkbox, :radio, :button, :enabled, :checked, :selected

Shorthand events:

1. .click()
2. .toggle and .toggleClass()

    $(document).ready(function() {
      $('#my_id').click(function() {
        $('#my_id .button').toggleClass('my_class');
      });
    });
   

This in particular is very useful as it can perform actions in alternation.

3. .hover

   $(document).ready(function() {
     $('#my_id .button').hover(function() {
      $(this).addClass('my_class');
     }, function() {
       $(this).removeClass('my_class');
      });
    });
   

4. .css

   $(document).ready(function() {
       $('#my_id').css('border', '1px solid #000')
    });
   

5. .hide and .show

   $(document).ready(function() {
       $('p').hide();
    });